Check skills before transformer commissioning

Check skills before transformer commissioning

secret

Get ready before the pitch, the pitch is actually more important,

Real electricity investment security, three aspects are indispensable;

External equipment can not be bad, not in accordance with the careful search,

All kinds of equipment, errands, calamities,

Self-inspection is indispensable, impact test reports,

The accessories are intact and not broken, there is no fault and no trouble,

Whether to apply for work tickets, relevant tools can be matched,

All the staff here, keep security measures in mind,

Emergency plans are in place. Power is a big deal.
Transformer before the trial and input requirements are the same, more realistic than analog operation, because the loop is the real power supply, therefore, the inspection of the transformer and the inspection of the input is basically the same, which can be divided into three aspects for inspection.

1) Check the external equipment of the transformer

(1) Check whether the protection on the high-voltage circuit breaker or load switch is complete, whether the protection parameters are set, whether the debugging is carried out by specialized personnel, whether the debugging report is qualified, and whether the unqualified part is rectified.

(2) Check whether the melt of the primary fuse is installed or whether the installation direction is correct, and some primary fuses are on the load switch, do not forget to check.

(3) Check the model of the arrester and compare it with the test report to see whether it meets the actual needs, such as the outdoor arrester installed in the household, and the large climb distance arrester installed in the small climb distance.

(4) Check whether the various sections of the high-voltage main switch to the transformer line are firmly connected, whether the insulation pillar on the line meets the requirements of the large climb distance, and carry out mandatory rectification for any inappropriate places.

2) Check the equipment and lines on the low voltage side of the transformer

(1) Whether the protection of the main switch on the low voltage side is adjusted well, whether the debugging report is completed and qualified, and it is better that the low voltage is all qualified.

(2) Check the installation of the line, for example, whether the bus bridge, cable bridge, overhead line, etc., meets the industry regulations, and whether it meets the special requirements of the local power supply department.

(3) Check whether the normal closure of the civil construction, fence and foundation cable channel around the transformer meets the requirements, and everything is the same as the formal operation.

3) Check the transformer itself

(1) Check whether the transformer impact closing test report is completed, and whether the transformer has any problems that have not been solved.

(2) Check whether the fan and temperature controller of the transformer are intact, and test the output point of the heavy and light gas gas switch to prevent misoperation.

(3) Whether the oil level is affected after the transformer test, whether the tap-changer is loose, whether the transformer input and output terminals are abnormal, and whether the dust or oil is wiped clean.

(4) Check all welds and connections for oil seepage.

4) Check the preparatory work for operation

(1) Whether the trial vote has been approved.

(2) The personnel on duty has been scheduled, and the relevant operation and maintenance equipment is complete.

(3) Whether the operators, ticketing personnel, supervisors and security personnel are in place, and whether the insulated work clothes they operate are dressed in accordance with the regulations.

(4) Whether the emergency response plan is in place.